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Merge pull request #46604 from slintes/goClientNotFoundStatusErrorExample

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Automatic merge from submit-queue (batch tested with PRs 46604, 47634)

Added example for status errors in go client

This PR adds status error handling examples to the go client examples, for both in-cluster and out-of-cluster usage. Fixes https://github.com/kubernetes/client-go/issues/163
This commit is contained in:
Kubernetes Submit Queue 2017-06-20 03:15:54 -07:00 committed by GitHub
commit 35016b153e
4 changed files with 34 additions and 0 deletions
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1
staging/src/k8s.io/client-go/examples/in-cluster-client-configuration/BUILD
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@ -19,6 +19,7 @@ go_library(
srcs = ["main.go"], srcs = ["main.go"],
tags = ["automanaged"], tags = ["automanaged"],
deps = [ deps = [
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library", "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/client-go/kubernetes:go_default_library", "//vendor/k8s.io/client-go/kubernetes:go_default_library",
"//vendor/k8s.io/client-go/rest:go_default_library", "//vendor/k8s.io/client-go/rest:go_default_library",

16
staging/src/k8s.io/client-go/examples/in-cluster-client-configuration/main.go
View File

@ -21,6 +21,7 @@ import (
"fmt" "fmt"
"time" "time"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes" "k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest" "k8s.io/client-go/rest"
@ -43,6 +44,21 @@ func main() {
panic(err.Error()) panic(err.Error())
} }
fmt.Printf("There are %d pods in the cluster\n", len(pods.Items)) fmt.Printf("There are %d pods in the cluster\n", len(pods.Items))
// Examples for error handling:
// - Use helper functions like e.g. errors.IsNotFound()
// - And/or cast to StatusError and use its properties like e.g. ErrStatus.Message
_, err = clientset.CoreV1().Pods("default").Get("example-xxxxx", metav1.GetOptions{})
if errors.IsNotFound(err) {
fmt.Printf("Pod not found\n")
} else if statusError, isStatus := err.(*errors.StatusError); isStatus {
fmt.Printf("Error getting pod %v\n", statusError.ErrStatus.Message)
} else if err != nil {
panic(err.Error())
} else {
fmt.Printf("Found pod\n")
}
time.Sleep(10 * time.Second) time.Sleep(10 * time.Second)
} }
} }

1
staging/src/k8s.io/client-go/examples/out-of-cluster-client-configuration/BUILD
View File

@ -19,6 +19,7 @@ go_library(
srcs = ["main.go"], srcs = ["main.go"],
tags = ["automanaged"], tags = ["automanaged"],
deps = [ deps = [
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library", "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/client-go/kubernetes:go_default_library", "//vendor/k8s.io/client-go/kubernetes:go_default_library",
"//vendor/k8s.io/client-go/tools/clientcmd:go_default_library", "//vendor/k8s.io/client-go/tools/clientcmd:go_default_library",

16
staging/src/k8s.io/client-go/examples/out-of-cluster-client-configuration/main.go
View File

@ -24,6 +24,7 @@ import (
"path/filepath" "path/filepath"
"time" "time"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes" "k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd" "k8s.io/client-go/tools/clientcmd"
@ -57,6 +58,21 @@ func main() {
panic(err.Error()) panic(err.Error())
} }
fmt.Printf("There are %d pods in the cluster\n", len(pods.Items)) fmt.Printf("There are %d pods in the cluster\n", len(pods.Items))
// Examples for error handling:
// - Use helper functions like e.g. errors.IsNotFound()
// - And/or cast to StatusError and use its properties like e.g. ErrStatus.Message
_, err = clientset.CoreV1().Pods("default").Get("example-xxxxx", metav1.GetOptions{})
if errors.IsNotFound(err) {
fmt.Printf("Pod not found\n")
} else if statusError, isStatus := err.(*errors.StatusError); isStatus {
fmt.Printf("Error getting pod %v\n", statusError.ErrStatus.Message)
} else if err != nil {
panic(err.Error())
} else {
fmt.Printf("Found pod\n")
}
time.Sleep(10 * time.Second) time.Sleep(10 * time.Second)
} }
} }